#274775
Closest named color: Twilight Blue (#0A437A). oklch(39.7% 0.087 257.6), rgb(39, 71, 117).
Aa
White text reads best on this color (9.35:1).
About this color
#274775 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.028 away. White text reads best on it, at 9.35:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.24:1 |
| White text | 9.35:1 |
Values
| HEX | #274775 |
| RGB | rgb(39, 71, 117) |
| HSL | hsl(215, 50%, 31%) |
| OKLCH | oklch(39.7% 0.087 257.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #274775 | 9.35:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #274775 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #274775 text on white | 9.35:1 | AAA | Lc 91.4 | Preferred for body text |
| #274775 text on black | 2.24:1 | Fails | Lc -10.9 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A7C3EB
oklch(81% 0.064 257.3)
-
Step 400
400
#77A2E1
oklch(70.6% 0.104 257.8)
-
Step 500
500
#538AD9
oklch(63.2% 0.133 257.5)
-
Step 600
600
#3772C6
oklch(55.6% 0.144 257.6)
-
Step 700
700
#295FAB
oklch(49% 0.134 257.6)
-
Step 800
800
#234E8B
oklch(42.7% 0.112 257.6)
-
Step 900
900 (this color)
#274775
oklch(39.7% 0.087 257.6)
-
Step 950
950
#142741
oklch(27.1% 0.055 256.6)
#274775 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #334B77 | 0.020 |
| Deuteranopia (no green cones) | #284374 | 0.012 |
| Tritanopia (no blue cones) | #005158 | 0.071 |
| Achromatopsia (no color) | #474747 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274775
#274775
oklch(39.7% 0.087 257.6)
- #5F4000
#5F4000
oklch(39.7% 0.083 77.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #274775, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.028
- Light Navy #155084 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.042
- Cobalt #1E488F ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.044
- Dusk Blue #26538D ΔE 0.049
- Charcoal #264653 ΔE 0.059
- Marine Blue #01386A ΔE 0.060
Use #274775 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.